Facilities and Construction Methods for Preventing Water and Mud Inrush in Tunnels
A technology of water and mud inrush and construction methods, which is applied in tunnels, tunnel linings, drainage, etc., and can solve problems such as high construction risks
Active Publication Date: 2022-06-17
CHINA RAILWAY 20 BUREAU GRP CORP LTD
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The main purpose of the present invention is to propose a facility and construction method for preventing water and mud inrush in tunnels, aiming at solving the problems of high construction risks in the prior art when tunnel construction passes through high-pressure water-rich areas in folded belts
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0061] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0062] It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present invention, the directional indications are only used to explain a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly.
[0063] In addition, if there are descriptions involving "first", "sec...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a facility and a construction method for preventing tunnel water inrush and mud inrush. The method forms a geological prediction report through advanced geological detection; constructs a tunnel water discharge and pressure reduction structure according to the geological prediction report to perform early drainage; Concrete grout-stop wall construction is carried out on the upper half section of the end face of the primary support to close the upper step; full-section curtain grouting is carried out through the upper step to form a consolidation outside the tunnel excavation contour line for strengthening the tunnel excavation surface body; the pipe shed support construction is carried out under the consolidation body to strengthen and support the consolidation body. The present invention effectively reduces the risk during tunnel construction by using the tunnel drainage and decompression structure in advance to drain and depressurize, then utilize the grout-stop wall to seal the front, then reinforce the curtain grouting, and support the pipe shed. The probability of water and mud inrush during construction ensures the safety of tunnel excavation.
Description
technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a facility and a construction method for preventing tunnel water inrush and mud gushing. Background technique [0002] In the process of tunnel construction, groundwater has a huge impact on the project. Most of the construction sites use methods such as grouting to strengthen the rock mass or concrete backfill to block the groundwater to ensure the safety of the operation. Especially the tunnels located in the geological conditions of the fold belt, which is a highly variable crustal thickness zone, complex geological structure, strong neotectonic movement, and has experienced multiple tectonic deformations, developed folds and faults, and has high-pressure water-rich areas. When the construction in the fold belt needs to pass through the high-pressure water-rich area, the risk of water inrush is easy to occur. During the tunnel excavation and construction process, o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21F16/02E21D11/10E21D11/00E21D9/00
CPCE21F16/02E21D11/10E21D11/003E21D9/00
Inventor 王平安任少强谭忠盛吴应明王存宝杨立燃李校珂王洪坤王青松
Owner CHINA RAILWAY 20 BUREAU GRP CORP LTD